Free Practice Questions for Oracle 1z0-931-25 Exam

SQL Developer Web in Autonomous Database relies on Oracle REST Data Services (ORDS) for access. The correct package is:

ORDS_ADMIN.ENABLE_SCHEMA (B):To allow a non-admin user (e.g., ANALYST1) to use SQL Developer Web, the ADMIN user executes ORDS_ADMIN.ENABLE_SCHEMA to enable the schema for ORDS access. This procedure activates the schema for RESTful services, granting privileges like CONNECT and SELECT implicitly for web-based SQL execution. Example:

BEGIN

ORDS_ADMIN.ENABLE_SCHEMA(p_schema => 'ANALYST1');

END;

After this, the user accesses SQL Developer Web via a URL (e.g., https:// /ords/analyst1/_sdw), logging in with their database credentials. This is necessary because SQL Developer Web runs on ORDS, and only enabled schemas can interact with it. For instance, an analyst might query SELECT * FROM sales in the web interface post-enablement, without needing full admin rights.

The incorrect options are:

ORDS_ADMIN.GRANT_SCHEMA (A):No such procedure exists in ORDS_ADMIN. Granting is handled via database roles/privileges (e.g., GRANT CONNECT), not a specific ORDS grant function.

ORDS_PRIV.ENABLE_SCHEMA (C):There’s no ORDS_PRIV package; this might confuse with ORDS_ADMIN. The correct package is ORDS_ADMIN for schema enablement.

SQLDEV_ADMIN.GRANT_SCHEMA (D):No SQLDEV_ADMIN package exists. SQL Developer Web access is managed through ORDS, not a separate SQL Developer-specific package.

ORDS_ADMIN.ENABLE_SCHEMA is the standard, secure way to enable non-admin access to this tool in ADB.

Autonomous Database on dedicated infrastructure supports multiple workload types. The correct answer is:

ATP and ADW (C):Autonomous Database on dedicated infrastructure supports both Autonomous Transaction Processing (ATP) for OLTP workloads (high concurrency, low latency) and Autonomous Data Warehouse (ADW) for analytical workloads (highthroughput, complex queries). This dual support allows flexibility within a single dedicated Exadata infrastructure.

The incorrect options are:

Autonomous Transaction Processing only (A):Incorrect, as ADW is also supported.

Hybrid Columnar Compression (B):HCC is a data compression feature, not a workload type; it’s used within ADW but doesn’t define the workload.

Autonomous Data Warehouse only (D):Incorrect, as ATP is also supported.

This versatility is a key feature of dedicated deployments.

Full Detailed In-Depth Explanation:

Supported events:

A:True. Marks the start of maintenance.

B:False. Not a recognized event type.

C:True. Indicates compartment change start.

D:False. IORM updates are internal, not event-tracked.

E:True. Signals termination completion.

Oracle Autonomous Database on Dedicated Infrastructure enforces automatic maintenance to ensure security, stability, and performance. The correct answer is:

You cannot permanently disable scheduled Automatic Maintenance (C):Oracle mandates periodic maintenance updates (e.g., patching) to keep the database secure and compliant with the latest fixes. Customers can influence the timing of these updates but cannot disable them permanently. This is a design principle of the Autonomous Database service to reduce administrative overhead while maintaining system integrity.

The incorrect options are:

Change the Automatic Maintenance Schedule to 'No Preference' (A):This setting allows Oracle to determine the maintenance window but does not disable maintenance. It still occurs as scheduled by Oracle.

Change the Automatic Maintenance Schedule to 'None' (B):There is no 'None' option in the maintenance scheduling settings for Autonomous Dedicated Infrastructure. This is not a valid configuration.

Change the Automatic Maintenance Schedule to 'Specify a Schedule' but do not select any month, week, or day (D):This is not a functional workaround. Specifying a schedule requires selecting a valid time window, and leaving it blank does not prevent maintenance; it simply reverts to Oracle’s default scheduling.

Oracle’s documentation confirms that while customers can reschedule or skip specific maintenance runs (up to two consecutive quarters), permanently disabling automatic maintenance is not permitted to ensure the system remains up-to-date and secure.